Several authors have studied the empirical correlation between H \(\alpha \)  luminosity and accretion rate for CTTSs (e.g. [1]}, [2]}, [3]}). Recently, this has been extended theoretically to a mass of 6 \(M_{\mathrm {J}}\)  for the scenario in which the H \(\alpha \)  is generated by magnetospheric accretion columns [4]}.
In [5]}, we presented the \(\dot{M} \) –\({L_{\textnormal {H}\,\alpha }} \)  correlation
for our models for accreting planets, looking also at other hydrogen lines.
Here, we briefly present this correlation again but including the effects of absorption.
Given the large uncertainty about the dust opacity (Section REF ), we consider only the gas opacity here.
